Flask



C. N. CORYELL.

FLASK.

APPLICATION FILED IAR. 23, I921.

Patented Nov. 22, 1921.

UNITED STATES CHARLES H. CORYELL, OF MAMARONECK, NEW YORK.

FLASK.

Application filed March 23, 1921.

1 0 alien/1cm it may concern Be it known that I, Ciiinnns N. CoRYELL, residing at I la naronec I, in the county of Westchester, State of New York, have invented certain new and useful Improvements n Flasks; and I do hereby declare the folowing' to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a container for liquids, usually potable, and more particularly to pocket flask which carries, housed within it, a removable cup.

It is common practice to drink directly from pocket flasks because usually there is no drinking vessel at hand into which the draft first be poured. This is at best an insanitary and inconvenient method of using the flask, but on the other hand to carry a special drinking cup, although sanitary, is even more inconvenient. To combine a cup with a pocket flask in some simple and unobstrusive manner would solve the difliculty, and this is broadly the object of the present invention.

It has formerly been not uncommon to ro de pocket flasks with drinking vessels over one of the ends of the flask and conformin to its external contour. This arrangement, however, is open to several objections. First, the external drinking vessel must of necessity be of relatively large capacity and of a shape awkward to drink from. Second, the glove-like fit necessary to hold the cup securely in place cannot long be iaintained, and the cup soon works loose and ten-its to slip from the flask. Third, the arrangement is insanitary. The lip of the cup is always exposed and cannot be kept clean; dirt works itself way into the cup, especially after the latter has been bent slightly or the lit between it and the flask loosened; and the external surface of the flask, which is being constantly handled, comes into contact with the inner surface of the cup when the later is positioned.

According to the present invention these disadvantages are done away with by providing the flask with a cup which lies internallv thereof. This might be accomplished by providing the flask with a simple interiorly projecting pocket into which the cup might be inserted, but such pocket would materia ly subtract from the capacity of the flask. It is therefore a more specific object Specification of Letters Patent.

Patented Nov. 22, 1921.

Serial No. 454,797.

of this invention so to house a cup within a flask as to lessen its capacity but little. This is accomplished by means of a cuphousing extending into the body of the flask and consisting of two concentric, substantially cylindrical, members spaced apart to define an annular space into which the cup is inserted. This annular space is inclosed at its inner end by the juncture of the two cylindrical members and the inner of these members is closed at its outer end, so that the liquid within the flask occupies the central space of the housing and in consequence little is subtracted from the capacity of the flask. At the same time the cup is held securely in position free from any tendency to work loose and the tight joint effected is sufficient to exclude all dirt and foreign material.

The invention will be more clearly understood after a study of the accompanying drawing which discloses certain preferred embodiments thereof and in which Figure 1 is a side view of the completed flask showing the cup housed therein; Fig. 2 is a view on an enlarged scale, partly in section, showing the housing and the cup positioned therein; Fig. 3 is a bottom view of the flask shown in Fig. 1; Fig. 4. is a section taken on line 4l-et of Fig. 2, but showing the housing with the cup removed; Fig. 5 is a vertical section through the cup itself; and Fig. 6 is a View similar to Fig. 3, but showing a modified form of cup.

The flask shown in this drawing is the ordinary flat metallic pocket flaskdcsigrned with one convex and one concave side whereby it is adapted readily to fit the contour of the hip. The edges of such a flask are also rounded to facilitate easy insertion into and removal from the pocket. The body portion of the flask is designated in the drawing by the reference numeral 1 and is provided with the ordinary cap 2 of any approved type. Extending into the body of the flask from its lower end is the housing 3 of this invention in which the cup 4 is adapted to be inserted.

This housing comprises two substantially cylindrical and concentric members 5 and 6, the outer member 5 being secured to the body of the flask as shown in Figs. 1, 2 and 4. The diameter of this outer member 5, as shown in Figs. 1, 2, 3 and 4c is slightly greater than the thickness of the flask itself. The members 5 and 6 are joined at their inner ends to form a liquid-tight joint, as shown most clearly in Figs. 2 and 4c, and the inner member 6 is permanently closed at its outer end by means of a metallic disk 7. By

means of this arrangement the liquid of the flask enters the space defined by the inner member 6, so that the total volume subtracted by the housing from the capacity of the flask is that volume occupied by the members 5 and 6 themselves and the space between them. Members 5 and 6 are spaced apart except at their inner ends to define between theman annular space 8 which constitutes a sheath for the sides of the cup 4. The inner memberfi is not a true cylinder but tapers slightly as shown in 2, so that the annular space 4 decreases in width toward the inner end of the housing. This results in effecting a tight fit between the walls of the cup at and the members of the housing. The cup l is also retained firmly in place by means of atmospheric pressure. When the cup is. forced into the housing the larger part of the air therein is displaced and forced outwardly by reason of the pressure exerted upon the cup. Once positioned, however, the force of gravity acting upon the light cup is incapable of initiating a withdrawal of i'tagainst the pressure of the atmosphere.

The cup lconsists of a cylindrical body or wallportion 9 and a base 10. The base extends beyond the periphery of the body portion to form a flange 11 and this flange abuts against the outer end of housing member 5 and forms a snug fit therewith. Because of this arrangement and also because of the close fit between the body portion of the cup and the members 5 and. (Set the housing it is practically impossible for dust or dirt to enter. and find lodgment within the cup itself.

The bottom of the cup 4 and the outer end of the housing are flat and of such area thatthe flask will stand alone, both when the cup is in its housing and when removed therefrom.

As shown in Fig. 3, the cup projects somewhat beyond the surfaces of the flask. This is not a very serious objection but may be entirely obviated by making the cup and its housing eliptical in cross section, as shown at 12 in Fig. 6. A cup of this shape may be made of substantially the same capacity as one having a circular cross section and yet fit more readily into a flat flask.

A flask made in accordance with this invention is neat and attractive in appearance. It is provided with a concealed cup housed almost wholly within the body of the flask, yet subtracting but little from its capacity. This. cup is of a convenient size, is readily ments of the invention have been shown and described. it is of course, to be understood that the applicant is not necessarily limited to these structural details, as modification may be made by those skilled in the art without departing from the spirit of the invention as defined by the appended claims. The invention has been shown and described in connection with a pocket flask, but it is clear that the housing and its removable cup.

might be employed in connection with other flasks, where the conditions of use. make necessary a conservation of space.

I claim: i

1. A; flask havinga housingextending into the body thereof and designed to house a non-collapsible cup, the housing subtracting from the capacity ofthe flask a volume substantially less than the capacity of the cup,

2. A flask having a housingfor a cup, the houslng comprising two concentric cyl1n;'

drical members defining an annular space betweenthem into which the cup is inserted;

3; A flask having a housing for a cup extending into the body thereof the housing comprising two concentric cylindrical members defining an annular cup receiving space between them, these members being joinedat their inner ends, and the inner member being closed at its outer end.

4. In a flask, the combination of a body portion having, extending thereinto, a housing comprising two concentric cylindrical members defining an annular space between them, and a cup removably fitted within said annular space, lip innermost.

5. A flask having a housing for a cup extending into the body thereof, the housing comprising two concentricsubstantially cylindrical'members defining an annular space between them, into which the cup is inserted, the width of this space diminishing toward the inner end of the housing.

6. A flask having a double-walled housing extending into the body thereof, the walls of thehousing being spaced apart toreceive between them the side walls of acup.

in testimony whereof I afiix my signature.

CHARLES N. CORYELL. 

